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U.S. Geological Survey (USGS) · Public domain
Landmark Americas wonder

Great Blue Hole

3000 BCE – still standing

Giant marine sinkhole off the coast of Belize, a near-perfect circle of deep blue surrounded by reef

Wikipedia

The opening of the article, and a way into the rest of it without leaving the site.

Great Blue Hole on Wikipedia.

Who held this ground

Borders from dated snapshots, up to a century apart; precision varies.

Reconstruction

  1. No border recorded here in this snapshot (3000 BCE–2026 CE)

Elsewhere in Americas at the time

Records whose own span overlaps this one, found by the same test the canvas draws with. The bar under each card is where it sits inside this one.

See the whole view
Image credits 5 pictures from Wikimedia Commons
  • Great Blue Hole U.S. Geological Survey (USGS) · Public domain
  • Chichen Itza Daniel Schwen · CC BY-SA 4.0
  • Flag of Canada (Pantone) Original: George F. G. Stanley Modified by: The original uploader was Illegitimate Barris… · Public domain
  • Machu Picchu Draceane · CC BY-SA 4.0
  • Flag of Mexico Omar Alejandro Covarrubias Neri, 9 April 2006. Based on the 1968 arms by Francisco Eppens… · Public domain